Apparatus for measuring the natural frequency of elongate objects



FIG. 1 is a top and right perspective view of an apparatus for measuring the natural frequency of elongate objects showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof; and

FIG. 7 is a left side elevational view thereof. 

The ornamental design for an apparatus for measuring the natural frequency of elongate objects, as shown and described. 